The product of common differences of all...

The product of common differences of all possible AP which are made from values of 'x' satisfying `cos^(2)((1)/(2)lambda x )+ cos^(2)((1)/(2) mu x )=1 `

A

`(4 pi^(2))/(lambda^(2)-mu^(2))`

B

`(4pi)/( lambda - mu ) `

C

`(2 pi^(2))/(lambda^(2)-mu^(2))`

D

None of these

Verified by Experts

The correct Answer is:

A

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